Asia's two most famous temple sitesóCambodia's Angkor Wat and Burma's Baganóeach have their partisans. Some say that Angkor's location amid dense foliage lends its ruins a heightened sense of mystery and romance. Others argue that the dry plain of Bagan provides a superior experience because there is no jungle to obstruct the view of its thousands of temples and pagodas. Given that operators at both places offer views from hot-air balloons, the debate can also be conducted in the air. The Angkor balloon is tethered 1 km away from the actual landmark, because Angkor's status as a World Heritage Site...